Liquid extraction filter and method for cleaning it

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 33/09 (2006.01) B01D 33/46 (2006.01) B01D 33/54 (2006.01)

Patent

CA 2720781

The object of the invention is a liquid extraction filter, more particularly a continuous-action, top-feed, vacuum drum filter. What is essential in the invention is that the filter comprises a drum structure (1) and filter elements (2), the filtration surface of which filter elements is formed of microporous hydrophilic material such that when filtering with a partial vacuum it is impervious to the surrounding air.

L'objet de la présente invention est un filtre d'extraction de liquide, plus particulièrement un filtre à tambour, à action continue, se chargeant par le haut, sous vide. Il est essentiel dans l'invention que le filtre comprenne une structure à tambour (1) et des éléments de filtre (2), que la surface de filtration de ces éléments de filtre soit formée d'une substance hydrophile microporeuse de sorte que lors de la filtration avec un vide partiel, elle soit imperméable à l'air qui l'entoure.

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